Writing tests for your application's service layer can be fast and simple. This approach uses Mockito to mock dependencies like databases and external APIs. You can verify business logic without needing a real database or Spring container.
With isolated unit tests you catch bugs early. Each test focuses on one behavior. You can test error scenarios and method invocations easily. This keeps your tests reliable and quick to run.
Anyone writing Java services with Spring can benefit. The patterns help you write clean, focused tests that give you confidence in your code.
Global
mkdir -p ~/.claude/skills/unit-test-service-layerProject
mkdir -p .claude/skills/unit-test-service-layerSource Repository
Grill Memattpocock/skills
Stress-test your plan with relentless questions until we both understand
Tddmattpocock/skills
Write one test at a time then code to make it pass
Test Driven Developmentobra/superpowers
Write a failing test first then code just enough to pass
Qamattpocock/skills
Turn bug reports into GitHub issues through natural conversation without technical fuss
Migrate To Shoehornmattpocock/skills
Replace unsafe as assertions with type-safe partial test data easily
Webapp Testinganthropics/skills
Test your local web apps quickly with Playwright automation and screenshots
Playwright Best Practicescurrents-dev/playwright-best-practices-skill
Master Playwright testing with best practices for reliable and fast tests
Google Agents Cli Evalgoogle/agents-cli
Run evaluations on your AI agent, find failures, and improve its quality step by step